Product Description
Custom Autosound USA-850 for a 1955-56 Oldsmobile
Enhance Your 1955-56 Oldsmobile with the Custom Autosound USA-850
Owning a 1955-56 Oldsmobile is a true testament to classic American automotive craftsmanship. Whether you’re restoring your Oldsmobile or simply want to enjoy modern audio features without sacrificing the car’s vintage aesthetic, the Custom Autosound USA-850 is the perfect radio upgrade. Designed specifically for classic cars, this stereo seamlessly blends retro styling with advanced technology, ensuring a high-quality listening experience without altering the factory look of your dashboard.
Classic Look with Modern Performance
The USA-850 is crafted to fit perfectly in the dash of your 1955-56 Oldsmobile, maintaining its classic appearance while delivering cutting-edge features. With a vintage push-button design, it retains the old-school charm of your vehicle while providing crystal-clear sound and multiple connectivity options.
Key Features of the USA-850
‚úî AM/FM Digital Tuner – Enjoy strong, static-free radio reception with access to all your favorite stations.
‚úî Bluetooth Connectivity – Wirelessly stream music from your smartphone, tablet, or other Bluetooth-enabled devices.
‚úî USB & AUX Inputs – Connect MP3 players, flash drives, or external audio sources for a versatile listening experience.
‚úî 300-Watt Power Output – Delivers crisp and powerful sound, enhancing your driving experience.
‚úî CD Changer Compatibility – Supports an optional CD changer for those who still love their CD collection.
Why Choose the USA-850?
The Custom Autosound USA-850 is designed for classic car owners who want the best of both worlds—the timeless look of their 1955-56 Oldsmobile and the convenience of modern technology. With easy installation, a factory-fit design, and superior audio quality, the USA-850 is the ultimate upgrade for your vintage ride.
Get yours today at Vintage Car Radio and enjoy the perfect blend of style and sound!
Specifications
• 4 programmable screen options
• Working analog dial
• Custom Fit In Dash
• 6-volt RCA Pre-Outs and dual subwoofer pre-outs
• DSP EQ
• Subwoofer control
• Bass, treble, mid
• Fader/balance
• Loudness on/off
• CD Controller
• RCA AUX in
• Bluetooth
• 75W X 4 Peak (300W max)
• PLL Tuner
• Power Supply 12 VDC negative ground
• Speaker impedance 2-8
• 4 lbs shipped
• Shipping box 12 X 11 X 5
• Fits all CAS current applications (400+)
Common Questions About the USA-850 for a 1955-56 Oldsmobile
Do I need to modify the 1955-56 Oldsmobile dash to install it?
This listing is the version made for the 1955-56 Oldsmobile, designed to go into the original dash opening. Custom Autosound says its radios fit without altering or cutting the original dash.
Will it work with a 6-volt system?
Which add-ons are offered with this radio?
The options on this page let you add a front dual voice coil speaker, a rear 6x9 speaker pair (Custom Autosound 6x9 Speaker Pair and Upgraded Pioneer Speaker Pair), and an antenna (Hideaway Antenna and Power Antenna).
Is there a CD or Bluetooth upgrade?
Check the CD options on this page, which include Single Slave CD.
Why does the order ask about factory air?
The Factory Air option tells us which dash layout your 1955-56 Oldsmobile has, so pick Yes if it has factory A/C.
What else should I know about the USA-850?
You can adjust bass, treble and midrange or choose a DSP EQ preset (Flat, Classic, Pop or Rock). Custom Autosound rates it at 75 watts x 4 peak (300 watts max), with 6-volt RCA pre-outs and dual subwoofer pre-outs.
USA-850 specifications
- DigaDial selectable display (including working analog-style dial and digital RDS views)
- Bluetooth built in (streaming and hands-free calling)
- 300 watts peak power (75W x 4 peak)
- AM/FM stereo tuner with RDS
- 25 presets
- USB port for MP3/WMA/FLAC/WAV playback and phone charging
- Rear RCA auxiliary input
- Direct control for optional CD-1
- 6-volt RCA pre-outs plus dual subwoofer pre-outs
- Bass, midrange, and treble; DSP EQ (Flat, Classic, Pop, Rock)
- Front/rear fader and left/right balance; loudness
- Power antenna lead; digital clock
- 12V negative-ground; 2–8 ohm speakers
- Designed for original classic dash openings (vehicle-specific faceplate)
- Custom Autosound 2-year manufacturer warranty
USA-850 wiring and tech tips
Use this as a head-unit reference for power, ground, antenna, speakers, and amplifier connections. Always match the printed diagram that ships with your unit if it differs.
Power and ground (typical Custom Autosound harness)
| Function | Wire color |
|---|---|
| Ignition / ACC +12V | Red |
| Battery / constant +12V | Yellow |
| Ground | Black |
| Power antenna | Blue |
Ignition and power-antenna leads are commonly fused at 1A on the harness—confirm against the guide that ships with your radio.
Speaker wiring (typical)
| Speaker | Wire color |
|---|---|
| Left front + / − | White / White-Black |
| Right front + / − | Gray / Gray-Black |
| Left rear + / − | Green / Green-Black |
| Right rear + / − | Violet (or Purple) / Violet-Black |
USA-850 extras
Expect antenna, USB (playback and phone charge), Bluetooth microphone, optional CD-1 control, 6V front/rear RCA pre-outs, and dual subwoofer pre-outs. Use the rear RCA AUX for a wired player. Pick your DigaDial display style in the radio menu after power-up.
Suggested order for a 1955-1956 Oldsmobile
- Disconnect the vehicle battery before any wiring.
- Connect ground first, then constant (yellow) and ignition (red).
- Connect the antenna plug and the blue power-antenna lead if your car has a power antenna.
- Wire all four speakers, matching polarity.
- If using an amplifier, run RCA cables from the front/rear (and sub on USA-740/USA-850) pre-outs.
- Reconnect the battery and test radio, speakers, and charging system voltage.
Tech tips for 1955-1956 Oldsmobile
- This radio is sold for the factory Oldsmobile opening used in 1955-1956 models—do not cut a modern DIN rectangle if you want a stock look.
- A poor ground is the most common cause of whine or weak audio; scrape paint at the ground point and use a star washer.
- If AM reception is weak, check the antenna mast, cable continuity, and that the antenna plug is fully seated.
- Vintage Car Radio does not install radios. If you are not comfortable with 12V wiring, use a qualified installer.
USA-850 manuals
Download the manufacturer guide for operation, safety, and the official wiring diagram. You can also browse our full library on the Manuals page.
Vintage Car Radio does not offer installation. The manuals are for do-it-yourself reference or to share with your installer.
Two-Year Custom Autosound Warranty
All Custom Autosound radios sold by Vintage Car Radio are backed by a 2-year manufacturer warranty from Custom Autosound.
Radios are checked before shipping. If something is wrong out of the box or under warranty, call us at 844-802-4499 or 574-226-6676 and we will help coordinate with the manufacturer.
Vintage Car Radio does not offer installation services. Refer to the Manuals and Wiring / Tech Tips sections for manufacturer guidance, or use a qualified car-audio installer.
FAQ — 1955-1956 Oldsmobile USA-850
Will this fit my 1955-1956 Oldsmobile without cutting the dash?
It is built for the original radio opening used on 1955-1956 Oldsmobile models. Compare your dash opening and bezel to the product photos. We do not modify dashes in-house.
Does this radio have Bluetooth?
Yes—Bluetooth is built into the USA-850 for streaming and hands-free calling. The DigaDial display also offers selectable classic dial and digital views.
Do I need an amplifier?
Many owners run speakers directly from the radio. Pre-outs are there if you want more volume or a subwoofer later.
Do you install the radio?
No. Vintage Car Radio ships the unit and documentation; installation is DIY or by a shop you choose.
What is the warranty?
Custom Autosound radios include a 2-year manufacturer warranty. See the Warranty section for details.
Need help?
Call 844-802-4499 or 574-226-6676.
Specs
Wiring / Tech Tips
Manuals
Warranty
Two-Year Custom Autosound Warranty
All Custom Autosound radios sold by Vintage Car Radio are backed by a 2-year manufacturer warranty from Custom Autosound.
Radios are checked before shipping. If something is wrong out of the box or under warranty, call us at 844-802-4499 or 574-226-6676 and we will help coordinate with the manufacturer.
Vintage Car Radio does not offer installation services. Refer to the Manuals and Wiring / Tech Tips sections for manufacturer guidance, or use a qualified car-audio installer.
